Terra 720 issue

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My "new" glider has a Terra 720 com. As i understand it, the channels have a 25khz spacing. But, it doesn't seem to transmit/receive on 123.075 (a perfectly fine channel w 25khz spacing), but is fine on 123.3.

Thoughts? (I know, i know... Buy a new com).

[[email protected]]

Also: any recommendations on a com which would fit in a Terra space in the panel?

[Darryl Ramm]

On Friday, August 19, 2016 at 7:04:11 AM UTC-7, wrote:
> Also: any recommendations on a com which would fit in a Terra space in the panel?

Nothing you want is going to slide into that exact slot. Your job would be to make a Becker or Trig radio fit. The remote compact head on a Trig TY91 is likely to offer the easiest install.

[Steve Leonard[_2_]]

On Friday, August 19, 2016 at 8:36:44 AM UTC-5, wrote:
> My "new" glider has a Terra 720 com. As i understand it, the channels have a 25khz spacing. But, it doesn't seem to transmit/receive on 123.075 (a perfectly fine channel w 25khz spacing), but is fine on 123.3.
>
> Thoughts? (I know, i know... Buy a new com).

I am assuming there is a reason 123.075 is important to you. I would assume you have checked to see that it is the .075 that isn't working? If that selector hadn't been used much, it could have light corrosion on it. Might try cycling it back and forth a number of times and see if it gets better. Last I had seen, Texas State Technical College was handling repairs.

Good Luck!

Steve Leonard

[Tim Taylor]

Have you tested the radio on 123.07? Most work on the + 0.005.

Is this the older push button or the newer digital radio?

[[email protected]]

Yes, 123.075 is important to me. It's the CTAF for our airport. Thanks for taking the time to answer.

[[email protected]]

The terra is an older push button for each number. The far right number has only 0, 2, 5, 7 (which makes sense as it's 25khz spacing). The terminal 5 would be assumed for the 2 and 7.

[JS]

On Friday, August 19, 2016 at 12:53:20 PM UTC-7, wrote:
> The terra is an older push button for each number. The far right number has only 0, 2, 5, 7 (which makes sense as it's 25khz spacing). The terminal 5 would be assumed for the 2 and 7.

Been there.
The issue is really which radio will fit where the wheel chock was.
Jim

[2G]

On Friday, August 19, 2016 at 7:04:11 AM UTC-7, wrote:
> Also: any recommendations on a com which would fit in a Terra space in the panel?

You may have a corroded contact on your pushbutton freq selector switch. I would spray it generously with contact cleaner and see if that makes any difference. Replacing the switch is the next option.

Tom